What is USN (Ubiquitous Sensor Network)

u-City is South Korea’s answer to urban community challenges leveraging ubiquitous computing technology to deliver state-of-the-art urban services. Korea’s experience designing and constructing u-City may be a useful benchmark for other countries. This chapter defines the concept of u-City and analyzes the needs that led Korea to embark on the u-City project ahead of others. It examines the opportunities and challenges that the nation faces in the transition stage. What has enabled Korea to pioneer the u- City concept is the development of IT infrastructure and the saturation of the IT market on the one hand, and the balanced national development strategy on the other hand. Success of u-City requires a national capability of designing forward-looking institutions to enable better cooperation among stakeholders, the establishment of a supportive legal framework and promotion of technology standardization.